without having the parts here for access is will be hard to give You the right answer or solution, but I can assume that the pattern in the master part itself will have 5 instead of 4 instances, could this be?
I was using someone elses part and it turns out there was a 5th hole that did not appear in the model.
But, if this was a more complex hole pattern and I wanted to skip instances, would there be anyway to acheieve that?
no, I'm not talking about the ASM pattern function but about the pattern within the part.
Here You for many many versions were able to suppress instances of a pattern.
If they are suppressed here, they also will not be used for the assembly patterning
There is no modification for ASM pattern in more current versions of SE
There is - of course - and this IMHO is one of the best enhancements of ST10 - the Clone Feature in ASM.
Simply click one reference hole and in any identical hole a clone of the parts will be positioned. Great!